Pulsator and the like



Jan. 2o, 1931.. yG,1C;@ANGLE .1,789,516

PULSATOR NDTHB L ;KE Y

med sept. 21,1927), "zsneQfs-sneet 19 Suva/hbox' y j j Y Patented Jan. 20, 1931 l i i i j omro STATES *PA'IVII-LNTy` OFFICEP I. ."1 i i enonen o. caANGLn, or Burnin, I i .,VfPUVLsATonTAND THE i appneaten mafsptember 21,1927. serial No. 220,867. 1

This invention relates .generally to pulsaaccompanying and forming a partI of `fthis tors' and the like. [Oneof its objeots'is to specification.l l' Y .i provide a mechanism whichcan'be used'as VIn said drawings,

a pulsator underfa'videly varying conditions F ig. 1 shows the variousideas embodied o for a number ofdifferent purposes such as in anv apparatus suitable for separating min- 55 Washing, classifying orfagitating coal', 4ores eral from sand, gravel, landthe like..` and other kinds of material,;although the Fig.2 '.is a detail in section anden a larger mechanismisjnot limited to such uses.l .i y scale, ofqa part of the apparatus shown in v vIn the'following speciication andinfthe 1. y i l0 drawings accompanying it, thefinv'ention is `ig. 3 is a top plan View ofthe apparaoo disclosed' in one form which itmight have tus 'shown inFig. 2, b ut ,shows a different when embodied in What 'maybetermed aH form of devices for fastening some' of the hydraulic pulsating jig. kThis `disclosure is,V partstogether.'` however, intended mainly to aiford a lcon- Fig. 4 is a section onthe line yof 1.5 venient Way of explaining the various'videas 3. A f 65 involved. As' will be clear later,l the ideas i Fig. 5 is a detail of a exible guide or referred to are capableorl embodiment in support for one of the moving parts ofthe various forms, and the apparatus may be mechanism of Figs. 1 and 2. i i usedv asa4 Whole.v or in part .for a number The apparatus inthe drawings is designed of different purposes in addition to the'ones primarily or use in connectionfwith gold 70 above mentioned,rin fact,aswill also belcleai' or platinum dredging operations and the later, a part of the mechanism may be used like,and comprises vone or more troughs or togive movement to' other Vmechanism insluices 10or Water-borne'material/ .Each stead of imparting a pulsating movement of the sluicesyisfcutawayto form anfopento material being Was ed for .otherwise ing,v 11.* Fastened'to the sluice under the 75l treated. i opening isa hopper 12 having its top in Another object of the invention is to` prosubstantially the same plane asthejbottom vide ainechanism' which has the general of the sluice. 1 'j Ij f characteristics' previously mentioned ,and f `'Extending across the hopperw12 is afscreen vwhich can be built at a minimum cost.` 13 which -may vbe ofyanyj mesh suitable for y80 Other objects are to provide amechanism the purpose intended. 4.The screen is prefer- Which'vvill not require much power `for its ably ona horizontal plane and is supported operation, which has yextreme `flexibility of cross members'jlllpfastened' tothe casing. adjustment to control its operations, which he arrangement issuch that as the ymate.- V has no belting a dbelt-drivenparts requirrial lowing fin thesluice passes over. the 85 i inglubrication, tvhich'has no bearings rescreenV the heavier portions 'Oit Willbe quiring protection :froml sandor grit,y and caughty above the screenand the'piner parconstant oiling, and which is` so sturdy and ticles of mineral may Vdrop through the trouble-proof asto requiresubstantially no screenjand be deliveredby the converging 40 repair or other attention overa'long periodv sidesl'of ay hutch to a trap 16 of'any suit` 90 ottime.v Allof these thingsfarefhighly' deable construction throughhwhich they can, sirable, and particularly so when the appa-y subsequently' be removed.; .K v Y ratusp'i's used insections Where supplies and It is apparent that instead of the current repair parts may not be easily available. flowing across the top of the hopper the maf rlVith the foregoing andfotherfobjects in terial mightkbe delivered by a launder terv95 view, the invention consists .in a 'novel conj-4 minating at the, hopper 12 or that fOr han struction andarr'an'oement :of parts, the. dling Vcertain materialsl the delivery might novel features of which are'point'edfoutwin be made in separate batches for separation the claims hereof, and an illustrative eminsteadwof' being delivered by a continubodiment of kwhich 's shown in thedrawing ously-flowing current. j j l In order for such an apparatus to be eili-r i the sluice 10, and this water might be agitated Aboth of` ther'n are so p ,gaging what ma Fi of a lyexible guide member `46, se

or given a pulsating movement. It 1s preferred, however, to introduce a pulsating current of water of considerable volume under the screen and cause it to pass upward through the screen and the material thereon.

In the apparatus illustrated in the drawings, this pulsating current is introduced through a conduit or pipe 18 extending vertically through the screen. This locatlon of the conduit 18 is, however, merely a convenient one and it might be introduced through the bottom or sides of the hutch without materially affecting the operation.

The water for suppl ing the current through the conduit 18 is elivered under the uired pressure or head through a pi e 21 :iid valve 22'to an inlet 23 in a cylindiical casing` 24 secured to the upper end of the conduit 18. The casing 24 has a iiangel 25 at its upper end, and above the flange is a ring 26. estin upon the ring 26 is a bracket. 27 which 01? reasons explained later, may not a1- ways be used. The bracket 27 has extrusions or ugs 28 rovided with holes to rece1ve two of a plura ity of bolts 31 which may be used to draw the rin 26 toward the up er face of the flange 25.. lamped between tlhe ring 26 andthe flange is a flexible diaphragm 32 referred to more in detail later on. y

Instead of using the bolts 31 a more convenient` arrangement such as shown in Figs. 4 and 5'may be used. That arrangement comprises a set of clamps 33, which may be pivoted to the under side of the flange 25, andk .each of which is provided with a clam ing bolt 34 for forcing the ring 26 ktow'ar the lian 25. 4 v y T e diaphra 32 is preferably formed of elastic sheet ru lber of a good quality and is erforated at its center to rece1ve a rod 36. vgurrounding the rod 36 is a sleeve y37, Fig. 2, and between the uppe sleeve'and the diaphragm 32 1s a cupped disk 38. Above the diaphragm 32 is a cup ed disk 39. The disk 39 is lar er than the dls 38 and aced that their convex faces contact the diaphra .e

VAt its lower end the rodgiltl carries a washer 41, a valve member 42 of rubber or leather, and washers 43 and 44, the latter washer enbe termed the hub 45 2 and 5 hub 45 aving an opening-or perforation to r end oftheA receive the rod 36. The guide member 46 is, like the diaphragm 32, made from a flexible material such as sheet rubber and is cut away to form arms or straps 47 which preferably merge at their outer ends with a circular portion 51. The ends of the straps, or the circular portion 51, are clampedbetween two rings 52 and'53 held" together by rivets or screwsv 54. A washer 55 (Fig. 2) engages the underside of the member 46.

The u' per and lower ends of the rod 36 are threade to cooperate with nuts 56 and 57 and lock nuts 58 and 59. When the nuts in question are properly tightened all of the washers and other elements between them will be clamped or drawn together to form substantially a unit with the rod 36.

upper face 'of the ring 52 serves as a valve seat for the valve member 4.2, and the ring 53, to which the ring 52 is secured, rests upon an inner flange of the casing 24. The upper and outer edge of the ring 52 is beveled or chamfered to cooperate with set screws 61 extending through the casing and serving to hold the rings 52 and 53 against movement.

It will be noted that the area of thediaphragm 32 which is exposed to the action of p the'water entering through the inlet 23 is greater in extent than the area of the valve `member 42 which is engaged bythe same pressure, and said area ofthe diaphragm is still eater than the valve opening 62 covered y the valve member. As the pressure increases the diaphragm will be distended until it vexerts sullicient pull on the rod 36, acting through or against the upper cup i ed disk 39, to raise the valve member 42 an permit the pressure to escape through the opening 62. This will allow the diaphragm 32 to return to its original position, and, acting against or through the cupped 'disk 38, reseat the valve member 42 to close the valve.y Before and as the valve is bein closed, however, sucient water will be ejected through it to give a pulsation through the conduit 18 to the water in the lower part of the hutch and through the bed of material on the screen 13. The cycle of operation is then repeated. hese successive pulsations may be rapid, running as high as several hundred per minute, the effect being to produce a vpulsating current of considerable volume through the material above the screen.

The frequency of the pulsations 'andV the volume ofthe pulsatingcurrent maybe regulatedby adjustment of the valve 22 in the inlet pipe to ycontrol the volume and rate of flow of the water. The rapidity of the pulsations and their .volume may also be controlled within certain limits by changing the rrelative areas of the valve member 42 or the diameter of the valve opening 62 with respect tothel area of the diaphragm 32.

As so. far described the apparatus is'operativefor its intended purpose. In order to srsL insure prompt rclosing of'the valve 42, 62, however, it may be desirable to reinforcethe operation ofthe valve by lsome means such as the spring 63 Seated within Vthe cupped"v disk 39 and engaging at'its other end with a cap 64on the-'end of a Vset screw 65 supported by the-bracket 27.k The set screwl may be adjusted to give l tension desiredand then fastened in position by means of the lock `nut 66. lIn addition to insuring prompt seating of the vaive `the lspring also sharpens the pulsations of the current and acts as a safeguard to prevent the valve from fluttering. As before stated, however, the device will operate in .a fairly satisfactory manner without the spring, anc

if the spring 1s not used the bracket 2( vmay will run for long periods attention after v1t 1s once be made. By removing to disengage them from the ring 52, whereupon the entire central assembly may be lifted y out as a unit andthe parts thereof replacedl i' matter accumulating screen, thel removal of the slate beingeffected .that instead of using water or adjusted.

From the foregoing description of thevconstruction it might be assumed that the apparatus serves only to screen out into the hutch 15 the material which it is desired to recover.

That, however, is not the case, as the apparatus alsoeffects a classification o'r stratification on the screen of minerals laccordlng to their different gravities, it working much the same in thatrespectas concentrating jigs now in use. t

If the apparatus is used for washing coal the operation is the same `as for ore screening or classifying, the slate and in the hutch and on the in any one of several well-knownI ways. v desired the screen may be omitted4 and the pulsating current introduced at or near the bottom of the hut 'h so as to produce a jigging effect on the material in thehutch'or equivalent receptacle.

If the apparatus shown in Fig.'2 is to be Aused for actuating other mechanism instead of supplying a pulsating current for classi-v fying or washing, said other mechanism may be connected directly to the rod 3 6. Such a change is an obvious one. It is also obvious underV pressure the apparatusin question mightbe operated the spring 63 the amount of work, butif repairsy are neces f loosening the clamps 33, the

other heavier P v, for saidl hutch leadmg to saidscreenwhere.1v

fluid under' pulsating pressure,

bymeans ofl'other fiuidisuppliedtunder pres#kr sureLp" .f `While theiappara 1s^admirably adapted to fulfill the lpurposes stated, it is obvious that the-inventive ideas are capable ofvariou's embodiments and/or adaptations to different uses. It is, therefore,

not the desire to Abe limited', to any particular? tus'shownandf described' construction ex'cept'the 'ones 'which'come withf in the scope of the claims vwhich follow; LIVhat is claimedfis-j 1. In a jigging apparatus, affiuid operated pulsator,"an' intake and;an"o'utlet for fluid 1. a hutch, 'ani hutch, said outlet lof they pul-y l sator land said intake of the hutch comprising` a conduit 4extending'from the 'pulsator'tof adapted tofoperate said vpulsator, intake for said the hutch.

2. In a jigging apparatus, 'al fluid operated" an intake and an outlet for fluid"y .aglaptedto operate said-pulsator, a hutch, lan of the pul` pulsator,

intake for said hutch, said'outlet sator and saidintake'offthe hutch being located at opposite ends ing from Ythe pulsator to the 'hutch 3. In a jiggingapparatus,a flui pulsator, a Y

quantity of 'material'to be concentratedor classified, an with fluid under continuous pressure, an outlet for said pulsatorsupplied with the same A y d-.operated' utch, a vscreen supplied'y with a i of a conduit extendl inlet 'for said'lpulsator suppliedv 'Y fluid under pulsatin'gpressure, an inlet'for said'hutch connected with-the outletof said pulsator whereby said' iuid under pulsating pressure is'l'ed lintosaid'hutch and an outlet for said hutch leading to said screen wherep by the iuid under pulsating vpressure nnparts agitating movement tofsaid material.

' 4. In a jigging apparatus pulsator, a quantityof material to be "concenterated or classified, an inlet for withfluid under let for said pulsator` suppliedwith the same fiuidfunder pulsatingy pressure, 4:arr-inlet for said `hutch 'connecte said pulsator 'supplied y a fluid operated' hutch, 'a'screensupplied with a`l105` continuous pressure, an outl dy with. the outlet of said pulsator whereby sa'd flui'dunder pulsatingbythe 1fluid""under pulsatingl pressurel 1m-v i to said material; f means comprismgaresilient diaphragm parts a 'tating movement and ressure is led'ki'nto said hutch and'r an Loutlet I for establishingthefrequency of the pulsa'- Y tion of theuidandiofthe agitation of the '5. In ajiogin 'apparatus,`ay uid^operated" with a material.l

pulsator, a utc ,ascreensupplie quantity'of material'to be concentrated `or classified, anv inlet'ifor said pulsator supplied with fluid runder continuousfpressu're, an outletfor said .pulsator supplied ,with the same said iff-hutchconnected withvthe y outlet of said pulsator whereby said pressure'is led into said hutch and an outlet fluid'under pulsating` an' inlet for l lwhereby the same to be concentrated taining hutch and a conduit interconnecting i and said material.

i discharged water l below the top` for said hutch leading to said screen whereby the fluideunder pulsating pressure imparts agitating movement to said material and means coniprisingan adjustable spring for ad'usting thefrequency of' the pulsations otsaidp'fluid. 6. In ajigging apparatus, a pulsator pcriodicallyL interrupting the flow of a fluid,y a fluid-containing hutch and a conduit interconnecting ysaid pulsator and said hutch luidis utilized to actuatc said pulsator and to replenish the fluid supply of saidhutch; v r

7. In a jigging'a'pparatus, a pulsator for periodically interrupting the flow of a fluid, a screen supplied with a. quantity' of material or classified, a fluid-consaid pulsator and said screen whereby the saine fluid is utilized to actuate said pulsator 8. ln a jiggiiig'apparatus, apulsator for periodically a screen suppliedwith a quantity of material to be concentrated or taining hutcliand a conduit interconnectin said pulsator andsaid hutch whereby the same fluid is utilized Vto actuate said pulsator, to replenish the fluid supply of said hutch and to agitate said material. Y i

ln a jigging apparatus, a water operated pulsator, a chamber containing a body of hutch water, an youtlet for intermittent discharges of exhaust water from said pulsator and means chamber. 10. VIn an apparatus of the character described, a sluicea hutch below and having its top substantially on the same plane as the bottom ofthe sluice, a screen in the hutch and thereof, a conduit extending below the screen, a valve member for opening and closing the conduit, means comprising a flexible diaphragm for operating the vaiveniember to open and close the conduit,

n a casing provided with aninlet `for an opervalve member, said ating fluid between thediaphiag'm and the valve member `constituting an outlet for said fluidand said outlet connected by said conduit-to the intake of said hutch.

ll. In an apparatus iol the ycharacter described, a sluice, ahutch below and having its top in the planeof'tlie bottom of the sluice,

4 a screen in the hutch and below the top thereof, a conduit'extending through the screen to a point adjacent the bottom of the hutch and constituting an inlet for fluid to the hutch, a valve member movable to open and the conduit, said valve an outlet -for fluid discharged from a v 'fluid operated pulsator whereby the operatingfluid of the pulsator is subsequently employed to fill the hutch` interrupting the flow of a fluid,

classified, a fluid confor directly conducting'v the fromsaid outlet into said y Iii testimony whereof I; heretoI aflix my i signa-ture. p

GEORGE o. CRANGLE. 

